Page 6 - DAX-Formula-Reference-Guide-Enterprise-DNA_Neat

DAX Formulas Reference Guide

DAX Formula Reference
• Date and Time Functions (DAX): These functions in DAX are similar to date and time
functions in Microsoft Excel.

• Time Intelligence Functions (DAX): These functions help you create calculations that
use built-in knowledge about calendars and dates. By using time and date ranges in
combination with aggregations or calculations, you can build meaningful comparisons
across comparable time periods for sales, inventory, and so on.

• Filter Functions (DAX): These functions help you return specific data types, look up
values in related tables, and filter by related values. Lookup functions work by using
tables and relationships between them. Filtering functions let you manipulate data
context to create dynamic calculations.

• Information Functions (DAX): These functions look at a table or column provided as an
argument to another function and tells you whether the value matches the expected
type. For example, the ISERROR function returns TRUE if the value you reference
contains an error.

• Logical Functions (DAX): These functions return information about values in an
expression. For example, the TRUE function lets you know whether an expression that
you are evaluating returns a TRUE value.

• Math and Trig Functions (DAX): Mathematical functions in DAX are similar to Excel’s
mathematical and trigonometric functions. However, there are some differences in the
numeric data types used by DAX functions.

• Other Functions (DAX): These functions perform unique actions that cannot be defined
by any of the categories most other functions belong to.

• Parent and Child Functions (DAX): These Data Analysis Expressions (DAX) functions help
users manage data that is presented as a parent/child hierarchy in their data models.
• Statistical Functions (DAX): These functions perform aggregations. In addition to
creating sums and averages, or finding minimum and maximum values, in DAX you can
also filter a column before aggregating or create aggregations based on related tables.

• Text Functions (DAX): With these functions, you can return part of a string, search
for text within a string, or concatenate string values. Additional functions are for
controlling the forms for dates, times, and numbers.

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